As peristaltic pumps play an increasingly important role in the national economy, people pay more attention to peristaltic pumps. Let's take a look at what aspects of the choice of peristaltic pump should pay attention to.
1. Select the tube
As a peristaltic pump hose conditions have a certain elasticity, that is, the hose can quickly recover shape after radial pressure, has a certain wear resistance, has a certain ability to encounter pressure, no leakage (good air tightness), low adsorption, good temperature resistance, not easy to aging, no swelling, corrosion resistance, precipitate advanced.
2, select the pump head
Choose single, multi-channel fluid transport, whether it is easy to replace the hose, whether it is easy to fix the hose pressure pipe gap by ratchet or other ways to adjust to different wall thickness of the hose or to achieve the fine adjustment of the pressure of the roller selection: 6 roller structure relative flow is slightly larger; 10 Roller structure fluid pulsation amplitude is small trigger structure is dexterous, open the card is convenient.
3. Select the drive
Is it necessary to carry out flow control, is it necessary to distribute liquid volume, what is the size of the flow range, is the overall structure reasonable, is the operation convenient, and is the flow accuracy and liquid volume accuracy up to the requirements
Special requirements: protection grade, explosion-proof grade, etc. External control requirements: equipment supporting, operation mode, etc.
Peristaltic pump advantages:
1, no pollution: fluid only contact pump pipe, not contact pump body;
2, high accuracy: repeat accuracy, high stability accuracy;
3, low shear force: it is a dream tool for transporting shear-sensitive and erosive fluids;
4, good sealing: has good self-priming ability, can idling, can prevent reflux;
5, the cover is simple: no valves and seals;
Peristaltic pump disadvantages:
1, pressure limitation: with flexible tubes, the encountered pressure will be limited;
2, the pump will attack a pulse flow during operation;
3, the peristaltic pump by adjusting the speed and changing the inner diameter of the pump to reach the change of flow, the flow range of the peristaltic pump is narrow;
Peristaltic pump can transport a variety of grinding, erosion, oxygen sensitive characteristics of materials and a variety of food, only the hose for the need to replace the parts, the replacement operation is very simple, in addition to the hose, the product is not in contact with any parts. When the user chooses, if the advantages and disadvantages of the peristaltic pump can be more familiar, it will be of great help to choose the peristaltic pump.